/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package net.hasor.maven;
import java.io.PrintStream;
import org.apache.maven.plugin.logging.Log;
/**
 * a Simple Maven Log that outputs to a Stream
 */
class StreamLog implements Log {
    static final int DEBUG = 0;
    static final int INFO  = 1;
    static final int WARN  = 2;
    static final int ERROR = 3;
    private int      level = INFO;
    public void setLevel(int level) {
        if (level < DEBUG || level > ERROR) {
            throw new IllegalStateException("invalid level: " + level);
        }
        this.level = level;
    }
    private final PrintStream s;
    StreamLog(PrintStream s) {
        this.s = s;
    }
    public void debug(CharSequence content) {
        if (isDebugEnabled()) {
            s.println(content);
        }
    }
    public void debug(CharSequence content, Throwable error) {
        if (isDebugEnabled()) {
            s.println(content);
        }
    }
    public void debug(Throwable error) {
        if (isDebugEnabled()) {
            error.printStackTrace(s);
        }
    }
    public void error(CharSequence content) {
        if (isErrorEnabled()) {
            s.println(content);
        }
    }
    public void error(CharSequence content, Throwable error) {
        error(content);
        error(error);
    }
    public void error(Throwable error) {
        if (isErrorEnabled()) {
            error.printStackTrace(s);
        }
    }
    public void info(CharSequence content) {
        if (isInfoEnabled()) {
            s.println(content);
        }
    }
    public void info(CharSequence content, Throwable error) {
        info(content);
        info(error);
    }
    public void info(Throwable error) {
        if (isInfoEnabled()) {
            error.printStackTrace(s);
        }
    }
    public boolean isDebugEnabled() {
        return level >= DEBUG;
    }
    public boolean isErrorEnabled() {
        return level >= ERROR;
    }
    public boolean isInfoEnabled() {
        return level >= INFO;
    }
    public boolean isWarnEnabled() {
        return level >= WARN;
    }
    public void warn(CharSequence content) {
        if (isWarnEnabled()) {
            s.println(content);
        }
    }
    public void warn(CharSequence content, Throwable error) {
        warn(content);
        warn(error);
    }
    public void warn(Throwable error) {
        if (isWarnEnabled()) {
            error.printStackTrace(s);
        }
    }
}
